Patents by Inventor John Chetter

John Chetter has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Powder compacting presses
    Patent number: 4147489
    Abstract: A press for compacting powders in which a first plunger is moved into a stationary die to meter and charge powder to be compacted into the die from one end of the die, a second plunger is advanced towards the first plunger to compact the powder within the die and the first plunger is then used to push the compacted powder from the other end of the die.The press may be used to make pellets of ceramic nuclear fuel material.
    Type: Grant
    Filed: August 9, 1977
    Date of Patent: April 3, 1979
    Assignee: British Nuclear Fuels Ltd.
    Inventors: George Milburn, John Chetter